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SubjectRe: Possible dcache BUG
On Fri, 20 Aug 2004 17:49:55 +1000 Nick Piggin (NP) wrote:

NP> Can you reproduce the OOM with the following patch please? Then
NP> send the output.

I reproduced the problem using a slightly different setup to trigger the
problem faster: 128 MB RAM, 188992 KB swap

Here's the output of the OOM killer with your patch applied:

oom-killer: gfp_mask=0x1d2
DMA per-cpu:
cpu 0 hot: low 2, high 6, batch 1
cpu 0 cold: low 0, high 2, batch 1
Normal per-cpu:
cpu 0 hot: low 14, high 42, batch 7
cpu 0 cold: low 0, high 14, batch 7
HighMem per-cpu: empty

Free pages: 1316kB (0kB HighMem)
Active:5281 inactive:23611 dirty:0 writeback:0 unstable:0 free:329 slab:1403 mapped:12232 pagetables:167
DMA free:712kB min:44kB low:88kB high:132kB active:5076kB inactive:5332kB present:16384kB pages_scanned:10112 all_unreclaimable? yes
protections[]: 22 178 178
Normal free:604kB min:312kB low:624kB high:936kB active:16048kB inactive:89112kB present:114688kB pages_scanned:62432 all_unreclaimable? yes
protections[]: 0 156 156
HighMem free:0kB min:128kB low:256kB high:384kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no
protections[]: 0 0 0
DMA: 0*4kB 3*8kB 13*16kB 1*32kB 1*64kB 1*128kB 1*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 712kB
Normal: 1*4kB 1*8kB 1*16kB 0*32kB 1*64kB 0*128kB 0*256kB 1*512kB 0*1024kB 0*2048kB 0*4096kB = 604kB
HighMem: empty
Swap cache: add 90886, delete 74524, find 4659/4974, race 0+0
Out of Memory: Killed process 1217 (gphoto2).

-Udo.
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